/// <summary>
/// 移除事件处理器。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="handler">事件处理器。</param>
public virtual void RemoveAsyncEventHandler <T>(DomainServiceEventRoute route, DomainServiceAsyncEventHandler <T> handler)
where T : EventArgs
{
if (route == null)
{
throw new ArgumentNullException(nameof(route));
}
if (handler == null)
{
throw new ArgumentNullException(nameof(handler));
}
if (route.HandlerType != typeof(DomainServiceAsyncEventHandler <T>))
{
throw new InvalidCastException("事件路由处理器类型与传入的类型不符。");
}
lock (_Events)
{
Delegate d = GetEventRouteDelegate(route);
if (d == null)
{
SetEventRouteDelegate(route, handler);
}
else
{
SetEventRouteDelegate(route, Delegate.Remove(d, handler));
}
}
}
/// <summary>
/// 添加事件处理器。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="handler">事件处理器。</param>
public virtual void AddEventHandler(DomainServiceEventRoute route, DomainServiceEventHandler handler)
{
if (route == null)
{
throw new ArgumentNullException(nameof(route));
}
if (handler == null)
{
throw new ArgumentNullException(nameof(handler));
}
if (route.HandlerType != typeof(DomainServiceEventHandler))
{
throw new InvalidCastException("事件路由处理器类型与传入的类型不符。");
}
lock (_Events)
{
Delegate d = GetEventRouteDelegate(route);
if (d == null)
{
SetEventRouteDelegate(route, handler);
}
else
{
SetEventRouteDelegate(route, Delegate.Combine(d, handler));
}
}
}
/// <summary>
/// 引发事件。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="context">领域执行上下文。</param>
/// <param name="eventArgs">事件参数。</param>
public virtual void RaiseEvent <T>(DomainServiceEventRoute route, IDomainExecutionContext context, T eventArgs)
where T : EventArgs
{
if (route == null)
{
throw new ArgumentNullException(nameof(route));
}
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (route.HandlerType != typeof(DomainServiceEventHandler <T>))
{
throw new InvalidCastException("事件路由处理器类型不符。");
}
Delegate d = GetEventRouteDelegate(route);
if (d == null)
{
return;
}
foreach (var item in d.GetInvocationList().Cast <DomainServiceEventHandler <T> >())
{
item(context, eventArgs);
}
if (route.ParentRoute != null)
{
RaiseEvent(route.ParentRoute, context, eventArgs);
}
}
/// <summary>
/// 注册异步事件。
/// </summary>
/// <typeparam name="T">事件参数类型。</typeparam>
/// <param name="name">事件名称。</param>
/// <param name="ownerType">所有者类型。</param>
/// <returns></returns>
public static DomainServiceEventRoute RegisterAsyncEvent <T>(string name, Type ownerType)
where T : EventArgs
{
DomainServiceEventRoute route = new DomainServiceEventRoute(name, ownerType, typeof(DomainServiceAsyncEventHandler <T>));
return(route);
}
public override void RaiseEvent <T>(DomainServiceEventRoute route, IDomainExecutionContext context, T eventArgs)
{
base.RaiseEvent <T>(route, context, eventArgs);
if (_Parent != null)
{
_Parent.RaiseEvent(route, context, eventArgs);
}
}
public override async Task RaiseAsyncEvent <T>(DomainServiceEventRoute route, IDomainExecutionContext context, T eventArgs)
{
await base.RaiseAsyncEvent <T>(route, context, eventArgs);
if (_Parent != null)
{
await _Parent.RaiseAsyncEvent(route, context, eventArgs);
}
}
protected override Delegate GetEventRouteDelegate(DomainServiceEventRoute route)
{
Delegate d;
if (!_Events.TryGetValue(route, out d))
{
return(null);
}
return(d);
}
/// <summary>
/// 注册事件路由。
/// </summary>
/// <param name="route">事件路由。</param>
public virtual void RegisterEventRoute(DomainServiceEventRoute route)
{
lock (_Events)
{
if (_Events.ContainsKey(route))
{
throw new InvalidOperationException("已添加的事件路由。");
}
_Events.Add(route, null);
}
}
protected override void SetEventRouteDelegate(DomainServiceEventRoute route, Delegate value)
{
if (_Events.ContainsKey(route))
{
_Events[route] = value;
}
else
{
_Events.Add(route, value);
}
}
/// <summary>
/// 重载事件。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="ownerType">所有者类型。</param>
/// <returns></returns>
public static DomainServiceEventRoute OverrideEvent(DomainServiceEventRoute route, Type ownerType)
{
if (route == null)
{
throw new ArgumentNullException(nameof(route));
}
if (ownerType == null)
{
throw new ArgumentNullException(nameof(ownerType));
}
DomainServiceEventRoute newRoute = new DomainServiceEventRoute(route, ownerType);
return(newRoute);
}
/// <summary>
/// 引发异步事件。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="context">领域执行上下文。</param>
public virtual async Task RaiseAsyncEvent(DomainServiceEventRoute route, IDomainExecutionContext context)
{
if (route == null)
{
throw new ArgumentNullException(nameof(route));
}
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (route.HandlerType != typeof(DomainServiceAsyncEventHandler))
{
throw new InvalidCastException("事件路由处理器类型不符。");
}
Delegate d = GetEventRouteDelegate(route);
if (d == null)
{
return;
}
foreach (var item in d.GetInvocationList().Cast <DomainServiceAsyncEventHandler>())
{
if (route.AsyncMode == DomainServiceAsyncEventMode.Await)
{
await item(context);
}
else
{
Task itemTask = item(context);
}
}
if (route.ParentRoute != null)
{
await RaiseAsyncEvent(route.ParentRoute, context);
}
}
public override void RaiseEvent <T>(DomainServiceEventRoute route, IDomainExecutionContext context, T eventArgs)
{
base.RaiseEvent <T>(route, context, eventArgs);
DomainContextEventManager.GlobalEventManager.RaiseEvent(route, context, eventArgs);
}
/// <summary>
/// 移除事件处理器。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="handler">事件处理器。</param>
protected virtual void RemoveAsyncEventHandler(DomainServiceEventRoute route, DomainServiceAsyncEventHandler handler)
{
DomainServiceEventManager.GlobalEventManager.RemoveAsyncEventHandler(route, handler);
}
/// <summary>
/// 添加事件处理器。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="handler">事件处理器。</param>
protected virtual void AddEventHandler(DomainServiceEventRoute route, DomainServiceEventHandler handler)
{
DomainServiceEventManager.GlobalEventManager.AddEventHandler(route, handler);
}
public override void RegisterEventRoute(DomainServiceEventRoute route)
{
throw new NotSupportedException("领域上下文当中的事件管理器不支持该方法。");
}
/// <summary>
/// 移除事件处理器。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="handler">事件处理器。</param>
protected virtual void RemoveAsyncEventHandler <T>(DomainServiceEventRoute route, DomainServiceAsyncEventHandler <T> handler)
where T : EventArgs
{
DomainServiceEventManager.GlobalEventManager.RemoveAsyncEventHandler(route, handler);
}
protected virtual void RaiseEvent <TArgs>(DomainServiceEventRoute eventRoute, TArgs e)
where TArgs : EventArgs
{
Context.DomainContext.EventManager.RaiseEvent(eventRoute, Context, e);
}
protected virtual void RaiseEvent(DomainServiceEventRoute eventRoute)
{
Context.DomainContext.EventManager.RaiseEvent(eventRoute, Context);
}
private DomainServiceEventRoute(DomainServiceEventRoute parentRoute, Type ownerType) : this(parentRoute.Name, ownerType, parentRoute.HandlerType, parentRoute.AsyncMode)
{
ParentRoute = parentRoute;
}
/// <summary>
/// 注册异步事件。
/// </summary>
/// <param name="name">事件名称。</param>
/// <param name="ownerType">所有者类型。</param>
/// <returns></returns>
public static DomainServiceEventRoute RegisterAsyncEvent(string name, Type ownerType)
{
DomainServiceEventRoute route = new DomainServiceEventRoute(name, ownerType, typeof(DomainServiceAsyncEventHandler));
return(route);
}
protected virtual Task RaiseAsyncEvent(DomainServiceEventRoute eventRoute)
{
return(Context.DomainContext.EventManager.RaiseAsyncEvent(eventRoute, Context));
}
protected virtual Task RaiseAsyncEvent <TArgs>(DomainServiceEventRoute eventRoute, TArgs e)
where TArgs : EventArgs
{
return(Context.DomainContext.EventManager.RaiseAsyncEvent(eventRoute, Context, e));
}
/// <summary>
/// 设置事件路由委托。
/// </summary>
/// <param name="route">事件路由。</param>
/// <param name="value">事件委托。</param>
protected virtual void SetEventRouteDelegate(DomainServiceEventRoute route, Delegate value)
{
_Events[route] = value;
}
public override async Task RaiseAsyncEvent <T>(DomainServiceEventRoute route, IDomainExecutionContext context, T eventArgs)
{
await base.RaiseAsyncEvent <T>(route, context, eventArgs);
await DomainContextEventManager.GlobalEventManager.RaiseAsyncEvent(route, context, eventArgs);
}
/// <summary>
/// 获取事件路由委托。
/// </summary>
/// <param name="route">事件路由。</param>
/// <returns>返回事件委托。</returns>
protected virtual Delegate GetEventRouteDelegate(DomainServiceEventRoute route)
{
return(_Events[route]);
}
